12
A
DC input
connector
Follow the instructions to connect the battery cables to the DC input terminals of the unit.
The cables should be as short as possible (less than 6 feet / 1.8 meters ideally) so that they
can handle the required current in accordance with the Electrical Codes and Regulations.
The size of the cable should be thick enough to limit the voltage drop to less than 2% when
carrying the maximum input current to prevent frequent low-input voltage warnings, and
shutdown. UVP (Under Voltage Protection) warning may result if there is excessive voltage
drop across the DC cables between the batteries and the unit. Increasing your DC cable
size will help improve the situation.
Batteries are capable of providing very large currents in case of short circuit. In case there
is a short circuit in the cable run between the batteries and the input terminals of the unit, it
will result in overheating / melting of the cables and consequent risk of fire and injury, to
prevent possibility of this hazard, use Very Fast Acting DC Fuse in line with the positive
cable. The fuse should be as close to the positive battery terminal as possible.
The following sizes of cables and fuses are recommended for up to 6 ft. distance between
the batteries and the unit.
MAX torque 100in-lb
Model No. Wire AWG Inline Fuse External Fuse
LSC12-2000 #2/0 400A >400A
B
Auxiliary DC
output Fuse
Second charger limit current protection.
C
Auxiliary DC
output
LSC12-2000 has a second charger output connector can be used to give a maintenance of
a small battery. Maximum current is 20A.
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